jm3708790 jm3708790

02-04-2018
Mathematics

contestada

5y−4x=−7 2y+4x=14 x= equals y= equals

Respuesta :

Аноним Аноним

02-04-2018

2y+4x=14
2(y+2x)=14
y+2x=7
y=7-2x

Bring y into 5y-4x=-7
5(7-2x)-4x=-7
35-10x-4x=-7
14x=42
x=3

Bring x=3 into y=7-2x
y=7-2(3)
y=1

x=3, y=1

Hope this helps.

Answer Link

Otras preguntas

GEOMETRY HELP) Triangle ABC is similar to triangle PQR. Which equation is correct?

a singular subject requires which type of verb

How to write a function that expresses f(x)

Factor completely 2x2 + 28x + 96.

What's geometric mean?

What most fundamentally aided the spread of Enlightenment ideas from Europe to America? A-the high literacy rate in American colonies B-the availability of news

Which culture is correctly matched with the form of writing it used?

John bought a used truck for $4,500. He made an agreement with the dealer to put $1,500 down and make payments of $350 for the next 10 months. The extra cost pa

Why doesn't the international date line isn't in a straight line

Under the evoluntionary theory, people believed that gods chose certain people to rule